R. Kalaivani,L.S. Ewe,Abdoulhdi A. Borhana,



Oil Palm Trunk,Natural Fibre,Thickness,Density,Sound Absorption Coefficient,SAC (α),


In recent years, oil palm is one of the natural fibre being researched and tested to be used as an acoustic absorber. Experiments have been conducted on different parts of oil palm tree such as Empty Fruit Brunch (EFB), Oil Palm Frond (OPF), Oil Palm Trunk (OPT) and so on. This paper specifically discusses the analysis of the OPT fibre as a function of the sound absorber in densities of 120 kg/m3, 140 kg/m3, 160 kg/m3 and 180 kg/m3 with thicknesses of 10 mm, 14 mm and 18 mm. The OPT natural fibres were fabricated using method of Low-Density Fibreboard (LDF). The results show prominent Sound Absorption Coefficient, SAC (α) values for sample with thickness of 10 mm and 14 mm at frequency range of 3500 Hz to 6400 Hz for all densities except for sample with density of 180 kg/m3. As the thickness and density increases, the resonance peak shifted to lower frequency due to lower perforation exist within the sample which decreases the value of the absorption value. In comparison between the density and thickness, optimum and best result were produced by the sample with thickness and density of 14 mm and 120 kg/m3, respectively, where the SAC (α) value is around 0.93 at wide frequency of 3500 Hz to 5500 Hz. Nevertheless, sample density of 180 kg/m3 also exhibits similar behavior but with lower SAC (α) value and the maximum absorption value of 0.50 over the frequency range of 2500 Hz to 6400 Hz for all the thickness.


I. Abdul Latif, H. (2016). Acoustical Characteristics of Oil Palm Mesocarp Fibres. Master of Mechanical Engineering. University Tun Hussein Onn Malaysia
II. Abdul Latif, H., Yahya, M., Rafiq, M., Sambu, M., Ghazali, M. and Mohamed Hatta, M. (2015). A preliminary study on acoustical performance of oil palm mesocarp natural fiber. Applied Mechanics and Materials, 773-774, pp.247-252
III. Al-Rahman, L., Raja, R., Rahman, R. and Ibrahim, Z. (2012). Acoustic Properties of Innovative Material from Date Palm Fibre. American Journal of Applied Sciences, 9(9), pp.1390-1395
IV. Aluru, s., Bandyopadhyay, S., Catalyurek, U.Y., Dubhashi, D.P., Jones, P.H., Parashar, M. and Schmidt, B. (Eds.) (2011). 4th International Conference, IC3 2011 Noida, India, August 8-10, 2011 Proceedings. © Springer-Verlag Berlin Heidelberg 2011. ISSN 1865-0929
V. Amares, S., Sujatmika, E., Hong, T., Durairaj, R. and Hamid, H. (2017). A Review: Characteristics of Noise Absorption Material. Journal of Physics: Conference Series, 908, 012005
VI. Arenas, J.P. and Crocker, M.J. (2010) Recent Trends in Porous Sound-Absorbing Materials. Sound & Vibration, 44, 12-17
VII. Begum K. and Islam M.A. (2013). Natural fiber as a substitute to synthetic fiber in polymer composites: a review. Research Journal of Engineering Sciences, 2(3), pp.46-53
VIII. Campilho, R. (2016). Natural fiber composites. 1st ed. CRC Press, Taylor &Francis Group
IX. Ermann, M. (2015). Architectural Acoustics illustrated. Hoboken: Wiley
X. Fouladi, M., Nassir, M., Ghassem, M., Shamel, M., Peng, S., Wen, S., Xin, P. and Nor, M. (2013). Modeling and Measurement Methods for Acoustic Waves and for Acoustic Microdevices. InTech
XI. Hui, Z. and Fan, X. (2009). Sound Absorption Properties of Hemp Fibrous Assembly Absorbers. Sen’iGakkaishi, 65(7), pp.191-196
XII. Ibrahim, M.A. and Melik, R.W. (1978). Physical parameters affecting acoustic absorption characteristics of fibrous materials. Proceedings of the Mathematical and Physical Society of Egypt, 46, 125-130
XIII. Ismail, L. (2012). Acoustic and Durability Performances of ArengaPinnata Panel. Master of Mechanical Engineering. University of Tun Hussein Onn Malaysia
XIV. Ismail, L., Ghazali, M.I., Mahzan, S. and Zaidi, A.M. (2010). Sound Absorption of ArengaPinnata Natural Fiber. World Academy of Science, Engineering and Technology, International Journal of Materials and Metallurgical Engineering, 4(7), pp.438-440
XV. Jiang, S., Xu, Y. Y., Zhang, H. P., White, C. B. and Yan, X. (2012). Seven-hole hollow polyester fibers as reinforcement in sound absorption chlorinated polyethylene composites. Applied Acoustics, 73, 243–247
XVI. Jiang, Z. H., Zhao, R. J., & Fei, B. H. (2004). Sound Absorption Property of Wood for Five Eucalypt Species. Journal of Forestry Research, 15, 207–210
XVII. Kalaivani, R., Ewe, L.S., Yap, B.K., Talik, N.A., Ibrahim, Z. (2018). The effects of density on microstructure and acoustic properties of OPT natural fibers. (2018). Journal of Fundamental and Applied Sciences, 10(3S), 434-445
XVIII. Kalaivani, R., Ewe, L.S., Zaroog, O.S., Woon, H.S. and Ibrahim, Z. (2018). Acoustic properties of natural fiber of oil palm trunk. International Journal of Advanced and Applied Sciences, 5(6), pp.88-92
XIX. Kalia, S., Kaith, B. and InderjeetKaur. (2011). Cellulose fibers: bio- and nano-polymer composites. Berlin, Heidelberg: Springer Berlin Heidelberg
XX. Koizumi, T., Tsujiuchi, N. and Adachi, A. (2002). The development of sound absorbing materials using natural bamboo fibers. WIT Transactions on the Built Environment. 59
XXI. Lee, Y. and Joo, C. (2004). Sound absorption properties of thermally bonded nonwovens based on composing fibers and production parameters. Journal of Applied Polymer Science, 92(4), pp.2295-2302
XXII. Lim, Z., Putra, A., Nor, M. and Yaakob, M. (2018). Sound absorption performance of natural kenaf fibres. Applied Acoustics, 130, pp.107-114
XXIII. Lou, C. W., Lin, J. H., & Su, K. H. (2005). Recycling polyester and polypropylene nonwoven selvages to produce functional sound absorption composites. Textile Research Journal, 75, 390–394
XXIV. Mamatha B.S., AnandNandanwar, Sujatha D., Uday D.N. and Kiran M.C. (2014). Particle board from bagasse for acoustic panel. International Journal of Fundamental and Applied Science, 3(3), 42-44
XXV. Mamtaz, H., Fouladi, M., Al-Atabi, M. and NarayanaNamasivayam, S. (2016). Acoustic absorption of natural fiber composites. Journal of Engineering, pp.1-11
XXVI. Samsudin, E.M., Ismail, L.H., Kadir, A.A. and Nasidi, I.N. (2017). Thickness, density and porosity relationship towards sound absorption performance of mixed palm oil fibers. 24th International Congress on Sound and Vibration, London
XXVII. Seddeq, H.S. (2009) Factors influencing acoustic performance of sound absorptive materials. Australian Journal of Basic and Applied Sciences, 3, 4610-4617
XXVIII. Shen, Y. and Jiang, G. (2013). Effects of different parameters on acoustic properties of activated carbon fiber felts. The Journal of the Textile Institute, 105(4), 392-397
XXIX. Sulaiman, O., Salim, N., Nordin, N., Hashim, R., Ibrahim, M. and Sato, M. (2012). The potential of oil palm trunk biomass as an alternative source for compressed wood. BioResources, 7(2)
XXX. Sydenstricker, T.H.D., Mochnaz, S. and Amico, S.C. (2003). Pull-out and other evaluations in sisal-reinforced terbiocomposites. Polymer Testing, 22(4), 375–380
XXXI. Vallabh, R. (2009). Modeling Tortuosity in Fibrous Porous Media using Computational Fluid Dynamics. Doctoral of Philosophy. Graduate Faculty of North Carolina State University
XXXII. Yahya, M. and Sheng Chin, D. (2017). A Review on the Potential of Natural Fibre for Sound Absorption Application. IOP Conference Series: Materials Science and Engineering, 226, pp. 012-014
XXXIII. Zhu, X., Kim, B., Wang, Q. and Wu, Q. (2013). Recent Advances in the Sound Insulation Properties of Bio-based Materials. BioResources, 9(1)

View | Download